commit e3c53e71cebb6a27a7f6e5e03e6489305208a1ac
author Roger Wang <wangroger@google.com> Thu Aug 12 15:35:13 2021 +0000
committer Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> Thu Aug 12 15:35:13 2021 +0000
tree 1ecb844219a87904d0fe08573fbfaad8a4a9a997
parent efef2dcf790feb043eb119046e70c72dce000d50
parent 3c8fcfcaf3716ff32765e0f3fa29f4d30764c3ae

HAL: error handling when no buffer space available am: 3c8fcfcaf3

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/broadcom/wlan/+/15542594

Change-Id: I2d009fa137a60f6136324e47a9ea2d092556c193

bcmdhd/wifi_hal/wifi_hal.cpp

diff --git a/bcmdhd/wifi_hal/wifi_hal.cpp b/bcmdhd/wifi_hal/wifi_hal.cpp
index 0ba633b..d3ffe57 100755
--- a/bcmdhd/wifi_hal/wifi_hal.cpp
+++ b/bcmdhd/wifi_hal/wifi_hal.cpp
@@ -66,6 +66,7 @@
 #define WIFI_HAL_CMD_SOCK_PORT       644
 #define WIFI_HAL_EVENT_SOCK_PORT     645
 #define MAX_VIRTUAL_IFACES           5
+#define WIFI_HAL_EVENT_BUFFER_NOT_AVAILABLE 105
 
 /*
  * Defines for wifi_wait_for_driver_ready()
@@ -747,6 +748,10 @@
             ssize_t result2 = TEMP_FAILURE_RETRY(read(pfd[0].fd, buf, sizeof(buf)));
             ALOGE("Read after POLL returned %zd, error no = %d (%s)", result2,
                   errno, strerror(errno));
+            if (errno == WIFI_HAL_EVENT_BUFFER_NOT_AVAILABLE) {
+                ALOGE("Exit, No buffer space");
+                break;
+            }
         } else if (pfd[0].revents & POLLHUP) {
             ALOGE("Remote side hung up");
             break;